Answer:

Step-by-step explanation:
First, distribute the -2 to the rest of the parenthesis, following PEMDAS.

Then, add -6a to both sides.

Now, you can divide both sides by 2 to isolate b.

Divide to simplify.

Answer:
Step-by-step explanation:
2 + (-3) + 7 = 2 - 3 + 7 = 9 - 3 = 6 <==
a positive multiplied by a negative will be negative
If you take away the 0s you can multiply 8 and 3. sooooo
3x8=24
It could be 30 to 31 but February has 28 expected from a leap year with 29 days